Keyless entry coding (retrofit)

Hi,



Just to clarify I own A7 (but more less is same as A6 - think knowledge is same for A6/A7 and many areas as similar in A8). 
How do I know do I need to replace BCM2 (I have 4N0907064D)?

I was able to cable 4 handles and two antennas and connect to BCM2 (I do have corresponding pins in BCM2) - connection to handles and antennas is tested, all good.
I was able to code 4 doors (activate kessy) and code handles (tested in ODBEleven - works ok) - module can see and operate handles (will recognise gestures).

I do have issue with two passenger door new kessy antennas, BCM2 is not aware they are present. I'm 99% sure all I need is add (code) them.
If kessy antena is coded in system but not present (disconnected) I will have open circuit message (tested for default antennas), for new in doors antennas I can disconnect/connect them (no difference - connection is tested antennas too) but module is not using them.

Where can I find security pin for BCM2?

I can go easy way and purchase kessy coding dongle (but I was hoping I can learn how to do this and prepare documentation).


I'm attaching log from different car (A8) and different diag system (I do not know how to extract similar log from OBDEleven):


IDE10100-MAS09931,Individual activation of antennae for access and start system-Access/start system antenna 1 in vehicle interior,136,              - I have this coded
IDE10100-MAS09932,Individual activation of antennae for access and start system-Access/start system antenna in luggage compartment,136,       - I have this coded
IDE10100-MAS09933,Individual activation of antennae for access and start system-Left Access/Start Authorization Antenna,132,                           - connected but not coded
IDE10100-MAS09934,Individual activation of antennae for access and start system-Right Access/Start Authorization Antenna,120,                         - connected but not coded
IDE10100-MAS09935,Individual activation of antennae for access and start system-Access/start system antenna 2 in vehicle interior,254,                (not sure)


I was able to test antennas connection from BCM2 vis OBDEleven:


BCM2 connection to one side antena test


BCM2 connection to other side antena test


BCM2 live data key location outside the car (not possible)

hi,




Thank you mat.
Door sensors are installed in my car (handles) and coded I do have issues with antennas (left and right). I'm sure I may find some information when I will view your config.
I was browsing long coding many times for 46 - I cannot find option to add antennas there.

Do you know security code for Comfort module 46?


Regards Chris